I've had Dionaea muscipula for some time... As well as some other carnivorous species. I kept it in a pot, had to order sphagnum soil but it was worth it. It was a real pain keeping my carnivorous plants alive as the climate here is not very welcoming for most of them, so I had to do everything I could to make the air humidity right. Also, since I am unfortunate enough not to have any sunlight in my apartment, I had to improvise the lights... Not having much money to invest in (and to pay electricity bills that come with special plant lights) I've made up a handmade LED lamp - the plants thrived under it! (I must accentuate that I am certainly NOT using my lamp for growing any illegal plants, as people used to ask me that all the time). Anyways, my point was - every condition in my place was the worst for the plants, yet I managed somehow with a bit of effort and they were very healthy and growing, so don't give up people Also, don't forget about winter dormancy - that's one of the most common mistakes people make, not letting the plant to go into it's dormant stage once a year. Refrigerator worked fine for me